Having a dig inside territory does not work.
Here is the info on a ticket I submitted to 2K support.
My game crashes when a new dig outside my territory playing Washington is completed. I found several reports of this in 2K Forums and Civilazation Fanantics Forum.
A suggestion was starting a dig inside the territory first then outside. I tried this with no success. I have completed a game with external territory digs once, so there is a workaround.
In saving the game files, I stopped the archaeologist dig then progressed to next turn, which was impossible then, as soon as I started the dig it crashed.
1. Video card has updated driver. Attached DxDiag.txt file.
2. BIOS is up to date. Attached system_info.txt file. A04 on Dell XPS 9100.
3. Just installed game and double checked updates, so most recent version of DirectX is installed.
4. I deleted the files in the following folder: \My Documents\My Games\Sid Meier's Civilization 5\cache. As well as config.ini, GraphicsSettingsDX9.ini and GraphicsSettingsDX11.ini in \My Documents\My Games\Sid Meier's Civilization 5\
5. Attached mdmp crash files that were present under C:\Program Files (x86)\Steam\steamapps\common\Sid Meier's Civilization V - File named mdmp.zip
6. Game files attached show the crash pretty well. Order is (a) Nowels_0417 AD-1997.Civ5Save. This is when the crash first occurred. (4:50 pm) (b) Nowels_0417 AD-1997_NO_DIG.Civ5Save which is when I turned off the automation on the dig and choose skip turn for the archaeologist. (4:54 pm) (c) Nowels_0417 AD-1997_FOLLOW_2.Civ5Save is the file just before I hit next turn with archeologist dig paused and every thing completed. (4:56 pm). (d) Nowels_0417 AD-1997_FOLLOW_AFTER.Civ5Save is the game when it progressed to the next turn successfully. (4:55 pm). The file attached with these files is Nowels_0417 AD-1997_NO_DIG.zip.
6. Then I resume dig and crash immediately, even before hitting next turn.
Don't see how to attach files. If I can I would.